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Compare 2018 Audi R8 vs 2018 Mercedes-Benz AMG GT vs 2018 Porsche 911

2018 Audi R8
X
2018 Mercedes-Benz AMG GT
X
2018 Porsche 911
X
Select style
V10 RWD
Style MPG City MPG Hwy Invoice MSRP
R8 Coupe V10 RWD 14 25 $128,991 $138,700
R8 Coupe V10 plus quattro 14 22 $180,792 $194,400
R8 Coupe V10 quattro 14 22 $153,357 $164,900
R8 Spyder V10 plus quattro 14 22 $193,533 $208,100
R8 Spyder V10 quattro 14 22 $164,703 $177,100
Select style
AMG GT C Coupe
Style MPG City MPG Hwy Invoice MSRP
AMG GT AMG GT C Coupe 15 20 $134,850 $145,000
AMG GT AMG GT C Roadster 15 20 $146,010 $157,000
AMG GT AMG GT Coupe 16 22 $104,532 $112,400
AMG GT AMG GT R Coupe 15 20 $146,010 $157,000
AMG GT AMG GT Roadster 16 21 $115,692 $124,400
AMG GT AMG GT S Coupe 16 22 $123,132 $132,400
Select style
Carrera 4 Convertible
Style MPG City MPG Hwy Invoice MSRP
911 Carrera 4 Convertible 19 28 N/A $110,300
911 Carrera 4 Coupe 20 28 N/A $98,000
911 Carrera 4 GTS Convertible 18 26 N/A $139,900
911 Carrera 4 GTS Coupe 18 26 N/A $127,600
911 Carrera 4S Convertible 19 28 N/A $124,300
911 Carrera 4S Coupe 20 28 N/A $112,000
911 Carrera Convertible 20 29 N/A $103,400
911 Carrera Coupe 20 29 N/A $91,100
911 Carrera GTS Convertible 18 26 N/A $133,000
911 Carrera GTS Coupe 18 26 N/A $120,700
911 Carrera S Convertible 20 28 N/A $117,400
911 Carrera S Coupe 20 29 N/A $105,100
911 Carrera T Coupe 16 25 N/A $102,100
911 GT2 RS Coupe 15 21 N/A $293,200
911 GT3 Coupe 15 20 N/A $143,600
911 Targa 4 19 28 N/A $110,300
911 Targa 4 GTS 18 26 N/A $139,900
911 Targa 4S 19 28 N/A $124,300
911 Turbo Convertible 19 24 N/A $174,100
911 Turbo Coupe 19 24 N/A $161,800
911 Turbo S Convertible 19 24 N/A $203,000
911 Turbo S Coupe 19 24 N/A $190,700
Pricing
Invoice Price
$128,991
$134,850
N/A
Manufacturer Suggested Retail Price
$138,700
$145,000
$110,300
Monthly Payment Estimate
$2312 / month
$2417 / month
$1838 / month
The Car Connection's Take
TCC Rating
8.2
7.8
7.6
TCC’s Bottom Line
As much a track star as it is a comfortable daily driver, the 2018 Audi R8 is one of the most balanced and flexible supercars ever made. The 2018 Mercedes-AMG GT performs brilliantly on any kind of pavement, making it one of our favorite modern sports cars. The 2018 Porsche 911 is a superlative sports car that has defied its age. It’s a classic, but performs better than nearly any newcomer to its arena.
TCC Likes
TCC Dislikes
Fuel Economy
City
14 mpg 15 mpg 19 mpg
Highway
25 mpg 20 mpg 28 mpg
Vehicle
EPA Classification
Two-Seaters Two-Seaters Minicompact Cars
Interior Dimensions
Passenger Capacity
2 2 4
Front Leg Room (in)
40.9 - -
Front Head Room (in)
38.5 39.5 -
Front Shoulder Room (in)
55.1 - -
Exterior Dimensions
Height, Overall (in)
48.8 50.7 50.7
Track Width, Rear (in)
63 66.1 61.3
Wheelbase (in)
104.4 103.5 96.5
Width, Max w/o mirrors (in)
76.4 79 72.9
Track Width, Front (in)
64.5 66.1 60.7
Length, Overall (in)
174.3 179 177.1
Cargo Area Dimensions
Trunk Volume (ft³)
8 - -
Brakes
Disc - Rear (Yes or )
Yes Yes Yes
Rear Brake Rotor Diam x Thickness (in)
14 14.2 13
Brake Type
4-Wheel Disc 4-Wheel Disc 4-Wheel Disc
Rear Drum Diam x Width (in)
NA NA NA
Disc - Front (Yes or )
Yes Yes Yes
Front Brake Rotor Diam x Thickness (in)
14.4 15.4 13
Drum - Rear (Yes or )
NA NA NA
Brake ABS System
4-Wheel 4-Wheel 4-Wheel
Fuel Tank
Fuel Tank Capacity, Approx (gal)
21.9 19.8 17.9
Steering
Steering Type
Rack-Pinion Rack-Pinion Rack-Pinion
Turning Diameter - Curb to Curb (ft)
36.7 37.6 36.7
Tires
Spare Tire Order Code
NA NA NA
Rear Tire Size
P295/35YR19 P305/30ZR20 P295/35YR19
Rear Tire Order Code
NA R03-1 NA
Front Tire Size
P245/35YR19 P265/35ZR19 P235/40YR19
Spare Tire Size
NA NA NA
Front Tire Order Code
NA R03-1 NA
Weight Information
Base Curb Weight (lbs)
3505 3748 3417
Wheels
Rear Wheel Size (in)
19 X 11 20 X 12 19 X 11.5
Front Wheel Material
Forged Aluminum Aluminum Forged Aluminum
Spare Wheel Material
NA NA NA
Front Wheel Size (in)
19 X 8.5 19 X 9 19 X 8.5
Spare Wheel Size (in)
NA NA NA
Rear Wheel Material
Forged Aluminum Aluminum Forged Aluminum
Electrical
Cold Cranking Amps @ 0° F (Primary)
420 - 450
Maximum Alternator Capacity (amps)
210 - 175
Engine
SAE Net Torque @ RPM
398 @ 6500 502 @ 1900 331 @ 1700
Engine Order Code
NA NA NA
Displacement
5.2 L/318 4.0 L/243 3.0 L/182
SAE Net Horsepower @ RPM
532 @ 7800 550 @ 5750 370 @ 6500
Engine Type
Premium Unleaded V-10 Twin Turbo Premium Unleaded V-8 Twin Turbo Premium Unleaded H-6
Fuel System
Port/Direct Injection Gasoline Direct Injection Gasoline Direct Injection
Mileage
Fuel Economy Est-Combined (MPG)
18 17 22
EPA Fuel Economy Est - Hwy (MPG)
25 20 28
EPA Fuel Economy Est - City (MPG)
14 15 19
Transmission
Sixth Gear Ratio (:1)
0.88 0.84 0.79
First Gear Ratio (:1)
3.13 3.40 3.91
Final Drive Axle Ratio (:1)
3.59 3.67 3.09
Third Gear Ratio (:1)
1.88 1.63 1.58
Trans Type
7 7 7
Fifth Gear Ratio (:1)
0.90 1.03 0.94
Trans Description Cont. Again
NA NA NA
Seventh Gear Ratio (:1)
0.65 0.63 0.62
Reverse Ratio (:1)
2.65 2.79 3.55
Second Gear Ratio (:1)
2.59 2.19 2.29
Trans Order Code
NA NA 487
Fourth Gear Ratio (:1)
1.14 1.29 1.18
Trans Description Cont.
Auto-Shift Manual w/OD Auto-Shift Manual w/OD Manual w/OD
Drivetrain
Rear Wheel Drive Rear Wheel Drive All Wheel
Summary
Body Style
Coupe Coupe Cabriolet
Vehicle Name
Audi R8 Coupe Mercedes-Benz AMG GT Porsche 911
Suspension
Suspension Type - Rear
Double Wishbone Double Wishbone Multi-Link
Suspension Type - Rear (Cont.)
Double Wishbone Double Wishbone Multi-Link
Suspension Type - Front
Double Wishbone Double Wishbone Strut
Suspension Type - Front (Cont.)
Double Wishbone Double Wishbone Strut
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year
9.8 - 8.0

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